kuryla



M. H KURYLA.

REMOVABLE CLOSURE.

APPLICATION FILED JAN. 16, 1911.

Patented July 6, 1920.

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M. H. KURYLA.

REMOVABLE CLOSURE,

I APPLICATION FILED JAN.16,19I7.

Patented July 6, 1920.

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J J l $513 attozwu M-MJ uNirno stares rarer MICHAEL H. KURYLA, OF PARKCITY, UTAH, ASSIGNOR TO THE MERRILL COMPANY,

OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF CALIFORNIA.

REMOVABLE CLOSURE.

Specification of Letters Patent.

Patented July ieao.

Original application filed July 29, 1916, Serial No. 106,563. Dividedand this application filed January T 0 all whom it may concern.-

Be it known that I, MIerIAnL H. KURYLA, a citizen of the United States,and a resident of Park City, in the county of Summit and State of Utah,have invented certain new and useful Improvements in Removable Closures,of which the following is a specification. V

This application is a division of the ap plication Serial Number106,568, filed by me upon July 29th, 191.6.

The present invention relates to closures applicable to chambers of allsorts and to mechanism for removing and replacing such closures. Themechanism which I have invented may readily be applied to the simultaneous opening and closing of closures at the opposite ends of achamber, but it is also applicable to a single closure.

An object of my invention is to provide mechanism by which a closure maybe released, swung out of the way, returned and locked in closedposition.

A further object of my invention in its preferred form is to effect thesimultaneous moving and locking of two opposite elosures.

To effect these purposes, I have provided a mechanism through which thevarious op erations necessary in opening, moving out of the way,returning and locking opposite closures are effected in proper order bymanipulation of a single operating means.

The turning of a hand-wheel effects successively the loosening of theclosures, the movement of the closures directly away from the chamberand the swinging of the closures out of line of the apertures which theynormally close. A rotation of the handavhecl in the reverse directionswings the closures into line with the openings, drawingthem in towardand against the peripheries of the openings and locks them into closecontact therewith.

For purposes of illustration, I have in the accompanying drawing shownthe removable closures and mechanism comprising my present inventionapplied to a chamber containing filter-plates and constituting with theclosures a pressure filter. While my invention may be used withparticular advantage in connection with a pressure Serial No. 142,628.

filter, it should be clearly understood that the invention is by nomeans limited to this application. It may be used in connection with anychamber used for any purpose whatever.

In the accompanying drawings-- Figure l is an end elevation of afilterchamber parts being broken away showing the closures in closedposition.

Fig. 2 is a vertical cross-section, of the filter-chamber showing theclosures removed from the openings in the chamber.

Fig. 3 is a top view of the chamber with the closures in closed positionwith a portion of the upper closure removed.

Fig. 4 is a side elevation, partly in sec tion, of the filter-chamberwith the closures in closed position.

In the embodiment of my invention illu trated, a suitable frame 2supports the chamber 3. The chamber is so constructed that it may beentirely open at top and bottom. When desired, the chamber is tightlyclosed by the top and bottom closure-plates 34, 35. J oints betweenthese plates and the chamber walls may be sealed by gaskets 36, seatedin grooves in the chamber.

Arranged at each end of the filter is a bar 41, which, when the filteris closed, is vertically disposed. Each of the closure-plates 34, 35 isprovided at its ends with elongated guides 38 through which the barsextend, the closures being arranged to slide on the bars and the barsserving to hold the closures alined. The bars are rotatably mounted attheir centers, so that they may swing to al low the closures to be swungout of alinement with the openings in the filter-chamber. Arranged ateach end of the filter is a frame 42, pivoted at one end on thehorizontal shaft 43, which is journaled in the filter-frame, theopposite ends of the frames 42 being capable of vertical movement, whichmovement is limited in the downward direction by a set-screw 14, whichis attached to an abutment L5, on each end of the filterframe (Figs.1-3). This construction allows the frame to rock slightly about itspivot for reasons which will be set forth hereinafter.

Journaled in each frame 42 at the center is a shaft 46, upon which ismounted a.

gear 47, which is provided with a flanged hub 48. The bar 41 isjournaled on the hub 48, and the friction between the hub and the bartends to cause the bar to move with the hub. Rotation of the gear causesthe bar to sv\ ing to move the closures 34 and 35 out of or intoalinement with the openings in the filter-chamber. Arranged in theflanges 51 of the hub, at diametrically opposite points, are shafts 52,53, to which are attached links 54, 55, which are attached at theirother ends to the closures 35 and 34, respectively. The links are bentso that they pass around the'hub and when the filterchamber is closed,as shown in Fig. l, the shaft 53, to which the links 55 of the upper'losure 34 are attached, lies below the shaft 46; and shaft 52, to whichthe links 54 ofthe lower closure 35 are attached, lies above the shaft46. Rotation of the gear-wheel 47, Fig. 1, in a counter-clockwisedirection will cause shaft 52 to move downward and shaft 53 to moveupward, lowering and raising, respectively, the closures 35 and 34. The

- gears 47 are rotated by the hand-wheel 56,

secured to the shaft 43, to which shaft are secured pinions 57 meshingwith the gears.

The links 54 and 55 are bent to allow the shafts 52 and 53 to passvertical alinement or dead center as the filter-chamber is being closed,thereby positively locking the closures to the chamber. After passingdead center, the links contact with the hub 48, which prevents theirfurther rotation.

By virtue of the fact that the hub 48, to which the links are. attached,is mounted v in a vertically movable frame, the hub may move verticallyto equalize the pressure on the top and bottom closures and tocompensate for any small differences in link length. By employing anequalizing means, both closures are tightly and evenly pressed to theirseats and an unequal link length will not prevent the proper seating ofthe closures.

The links 54, 55 are attached at their outer ends to eye-bolts 58 bymeans of pins 59. The outer ends or threaded portions of the eye-bolts58 are disposed in the closures 34 and 35. Arranged on the outer andinner face of the closures and attached to the threaded portion ofeye-bolts 58'are nuts 61 and 62, respectively. By the adjustment ofthese nuts on the eye-bolts 58 the effective length of the link isvaried.

Means are provided for restraining the movement of the closures duringthe open? ing of the filter to a vertical movement until the closureshave moved a sufiicient distance lies on thatside of the guide towardwhich the closure moves as it is swung from alinement with the chamber.WVhen the closure has been moved vertically away from the chamber asuflicient distance to allow it to clear the chamber as it swings, theguide 38 has been moved out of contact with the abutment G5 and thefrictional pull on the bar 41, due to the rotation of the gear 47,causes the bar to swing 011 its axis and carry the closures laterally,clear of the openings in the chamber. An abutment 66 (Figs. 2, 3) on theframe 42 stops the swinging movement of the closures by contacting withthe bar 41. The filter-chamber is then completely open at the top andbottom.

When it is desired to close the chamber, the gear 47 is rotated in theopposite direc* tion and the closures are moved back into 'alinementwith the filter-chamber, being halted in the alined position byabut-merits 69 (Figs. 2, 4) on the frame with which the guides 38contact. The abutment (i9 is placed lower than the abutment 65 and theguide 38 passes abutment 65 and Stl'JkGS abutment 69. The frictionalcontact between the gears 47 and the bars 41 causes the bars to swingwith the gears until the movement of the gears draws the closures inagainst the chamber and locks them in actuator for said closuresrotatably mounted on said swinging frame, links connecting said closureswith said actuator. r

3. A chamber having an opening, a closure for said opening, a rotatableactuator for said closure, means for moving said closure in alinementwith said opening positlv'ely connected to said actuator, means forswinging said closure relative to said opening frictionally connectedwith said actuator.

4. A chamber having an opening, a closure for said opening, a rotatableactuator for said closure, means for moving said closure directly awayfrom said opening positively connected to said actuator, means forswinging said closure frictionally connected to said actuator, a stop toprevent said closure from swinging until it has been moved directly awayfrom the opening for a prede termined distance.

5. A chamber having an opening, a closure for said opening, a rotatableactuator for said closure, means for moving said closure directly towardsaid opening positively connected to said actuator, means for swingingsaid closure into alinement with said opening friction-ally connected tosaid actuator, and a stop to prevent further swinging of said closurewhen brought in alinement with said openin 6. A chamber having anopening, a closure for said opening, a rotatable actuator for saidclosure, means positively connected to said actuator for moving saidclosure in alinement with said opening, means frictionally connectedwith said actuator for swinging said closure out of and into alinementwith said opening, a stop to prevent said closure from swinging out ofalinement with said opening in one direction until it has been moveddirectly away from the opening for a predetermined distance, and a stopto prevent said closure from swinging out of alinement with said openingin the other direction.

7. A chamber having an opening, a closure for said opening, a rotatableactuator for said closure, a bar slidably connected with said closureand rotatable upon the same axis as the actuator and in frictionalcontact with the actuator.

S. A chamber having an opening, a closure for said opening, a rotatableactuator for said closure, a bar pivoted on said actuator slidablyconnected with said closure,

I for said closure, a bar shdably connected with said closure androtatable upon the same axis as said actuator and in frictional contactwith said actuator, a link connected with said closure and pivoted at aneccentric point on said actuator.

10. A chamber having openings in oppo site walls, closures for saidopenings, a bar on which said closures are slidable, links connected tosaid closures and arranged to slide them along said bar, and means forrotating said bar to shift said closures from alinement with the chamberopenings.

11. A chamber, removable closures for the top and bottom of saidchamber, a shaft extending alongside the chamber, a frame rotatablymounted on the shaft at each end of the chamber, a gear journaled ineach frame, a bar pivoted on each frame and slid ably engaging theclosures, links connecting said closures to eccentric points on saidgears and means for rotating said gears, whereby the closures are slidalong said bars.

12. A chamber, opposite removable closures on said chamber, a revolublecarrier whose axis is parallel to said closures on which said closuresare slidably mounted, and means for sliding said closures on saidcarrier and rotating the carrier to move the closures from alinementwith the chamber openings.

MICHAEL H. KURYLA.

